EVALUATION OF NONLINEAR AND DYNAMIC EFFECTS ON ASPHALT PAVEMENTS RESPONSE UNDER FWD LOADING

Several backcalculation techniques such as linear static, linear dynamic, and nonlinear static methods have been investigated in the context of a case study involving a site with a shallow bedrock and nonlinear base and subgrade materials. The best results were obtained using nonlinear analysis, implying that nonlinear effects are more significant than dynamic effects in terms of affecting pavement response. The analysis also showed that frequency-response-based methods can lead to serious errors if the measured FWD records are truncated before the motions fully decay in time. This applied to dynamic-frequency-backcalculation as well as enhanced static backcalculation that uses the zero-frequency deflection basin.

  • Availability:
  • Corporate Authors:

    University of Mississippi, University

    Center for Advanced Infrastructure Technology
    University, MS  United States  38677-1848
  • Authors:
    • Chatti, K
    • Waqar Haider, S
    • Lee, H S
    • Ji, Yangbeibei
    • Salama, H
  • Publication Date: 2003-5

Language

  • English

Media Info

  • Features: Figures; References; Tables;
  • Pagination: p. 88-99
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00961585
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Aug 25 2003 12:00AM